II F 2-21
3ADW000072R0501_DCS600_System_description_e_e
Field converter type for field current Transformer
≤≤
≤≤
≤500 V; 50/60 Hz I
F
type 50/60 Hz
U
prim
=
≤≤
≤≤
≤500 V
SDCS-FEX-1 ≤6 A T 3.01
SDCS-FEX-2A ≤12 A T 3.02
SDCS-FEX-2A ≤16 A T 3.03
DCF503A/4A-0050 ≤30 A T 3.04
DCF503A/4A-0050 ≤50 A T 3.05
U
prim
=
≤≤
≤≤
≤600 V
SDCS-FEX-1 ≤6 A T 3.11
SDCS-FEX-2A ≤12 A T 3.12
SDCS-FEX-2A ≤16 A T 3.13
U
prim
=
≤≤
≤≤
≤690 V
DCF503A/4A-0050 ≤30 A T 3.14
DCF503A/4A-0050 ≤50 A T 3.15
Table 2.6/4: Autotransformer data (details see
Technical Data)
Transformer T3 for field supply to match voltage levels
Fig. 2.6/4: T3 autotrans-
former
Type of converter Type Fuse holder
DCS60x-0025-41/51 170M 1564 OFAX 00 S3L
DCS60x-0050-41/51 170M 1566 OFAX 00 S3L
DCS60x-0050-61 170M 1566 OFAX 00 S3L
DCS60x-0075-41/51 170M 1568 OFAX 00 S3L
DCS60x-0100-51 170M 3815 OFAX 1 S3
DCS60x-0110-61 170M 3815 OFAX 1 S3
DCS60x-0140-41/51 170M 3815 OFAX 1 S3
DCS60x-0200-41/51 170M 3816 OFAX 1 S3
DCS60x-0250-41/51 170M 3817 OFAX 1 S3
DCS60x-0270-61 170M 3819 OFAX 1 S3
DCS60x-0350-41/51 170M 5810 OFAX 2 S3
DCS60x-0450-41/51/61 170M 6811 OFAS B 3
DCS60x-0520-41/51 170M 6811 OFAS B 3
DCS60x-0680-41/51 170M 6813 OFAS B 3
DCS60x-0820-41/51 170M 6813 OFAS B 3
DCS60x-1000-41/51 170M 6166 3x 170H 3006
Table 2.6/2: Fuses and fuse holders (details see
Technical Data)
Semiconductor type F1 fuses and fuse holders for AC and DC power lines
(DCS 601 /DCS 602 - DCF 601/DCF 602)
The converter units are subdivided into two
groups:
– Unit sizes C1 and C2 with rated currents
up to 1000 A require external fuses.
– In unit sizes A5, A6 and A7 with rated
currents of 900 A to 5200 A, the semicon-
ductor fuses are installed internally (no
additional external semiconductor fuses
are needed).
The table on the right assigns the AC fuse
type to the converter type. In case the con-
verter should be equipped with DC fuses
according to the hints use the same type of
fuse used on the AC side now in the plus and
minus line. Blade type fuses are used for all
the converters construction type C1 and C2
except the biggest one.
The field supply units’ insulation voltage is
higher than the rated operating voltage (see
Chapter Field supplies), thus providing an
option in systems of more than 500 V for
supplying the power section of the converter
directly from the mains for purposes of arma-
ture supply, and using an autotransformer to
match the field supply to its rated voltage.
Moreover, you can use the autotransformer
to adjust the field voltage (SDCS-FEX-1
diode bridge) or to reduce the voltage ripple.
Different types (primary voltages of 400...500
V and of 525...690 V) with different rated
currents each are available.
Depending on the protection strategy
different types of fuses are to be used.
The fuses are sized according to the
nominal current of the field supply de-
vice. If the field supply unit is connected
to two phases of the network, two fuses
should be used; in case the unit is con-
nected to one phase and neutral only one
fuse at the phase can be used. Table 2.6/
3 lists the fuses currents with respect to
table 2.6/2.
The fuses can be sized according to the
maximum field current. In this case take
the fuse, which fits to the field current
levels.
Fuses F3.x and fuse holders for 2-phase field supply
Field conv. Field F3.1 F3.2 F 3.3
current
SDCS-FEX-1 I
F
≤ 6 A 170M 1558 OFAA 00 H10 10 A
SDCS-FEX-2A
SDCS-FEX-2A I
F
≤ 12 A 170M 1559 OFAA 00 H16 16 A
SDCS-FEX-2A I
F
≤ 16 A 170M 1561 OFAA 00 H25 25 A
DCF 503A
DCF 504A
DCF 503A I
F
≤ 30 A 170M 1564 OFAA 00 H50 50 A
DCF 504A
DCF 503A I
F
≤ 50 A 170M 1565 OFAA 00 H63 63 A
DCF 504A
Type of protection Semiconduct. LV HRC type circuit breaker
elements type fuse for for 690 V; fuse for 500 V or
fuse holder hold. OFAX 00 690 V
type OFAX 00
Table 2.6/3: Fuses and fuse holders for 2-phase field supply
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